Pipeline now in service TULSA, Okla., Nov. 10 /PRNewswire-FirstCall/ -- Williams (NYSE:WMB) announced today that Northwest Pipeline GP, Williams' majority-owned subsidiary, has received authorization from the Federal Energy Regulatory Commission (FERC) to place its 24-inch diameter natural gas transmission pipeline known as the Colorado Hub Connection into service. The approximately 26.4-mile pipeline and related facilities connect the Meeker/White River Hub, a regional production area hub, with the Northwest Pipeline mainline system south of Rangely, Colo. The project will provide approximately 360,000 dekatherms per day of firm transportation service on Northwest's mainline to delivery points as far south as Ignacio, Colo. At Ignacio, Northwest interconnects with El Paso Natural Gas and Transwestern Pipeline Company. The cost of the project is approximately $60 million. "Completion of the Colorado Hub makes it possible for us to connect the Piceance Basin supplies with markets in the western U.S. through Northwest's existing mainline system," said Phil Wright, president of Williams' gas pipeline business. "We appreciate the efforts of the FERC and other state and federal agencies in their timely and professional review and approval of the project." In August 2007, Northwest conducted an open season for the project and filed an application for a FERC certificate in Sept. 2008. Williams Pipeline Partners L.P. (NYSE:WMZ) owns a 35-percent interest in Northwest Pipeline GP. About Williams (NYSE:WMB) Williams, through its subsidiaries, finds, produces, gathers, processes and transports natural gas. Williams' operations are concentrated in the Pacific Northwest, Rocky Mountains, Gulf Coast and the Eastern Seaboard. More information is available at www.williams.com. Go to http://www.b2i.us/irpass.asp?BzID=630&to=ea&s=0 to join our mailing list. Contact: Michele Swaner Williams (media relations) 801-584-7048 Richard George Williams (investor relations) 918-573-3679 Portions of this document may constitute "forward-looking statements" as defined by federal law. Although the company believes any such statements are based on reasonable assumptions, there is no assurance that actual outcomes will not be materially different. Any such statements are made in reliance on the "safe harbor" protections provided under the Private Securities Reform Act of 1995. Additional information about issues that could lead to material changes in performance is contained in the company's annual reports filed with the Securities and Exchange Commission. DATASOURCE: Williams CONTACT: Michele Swaner, media relations, +1-801-584-7048, or Richard George, investor relations, +1-918-573-3679, both of Williams Web Site: http://www.williams.com/

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